Released last week by Westport, Conn.-based Save the Children, a humanitarian organization, the study found that Sweden was the best country for mothers and children, while nations in sub-Saharan Africa ranked at the bottom. The United States was rated in the 11th-best place.

The report ranks 110 countries based on the health and living conditions of mothers and their children. Indicators for health included infant-mortality rates, percent of women using contraception, and literacy rates among adult women.